Mass Vision 3 Pair of Classic The Intellect Full Reading Sunglasses - Outdoor Reading Sunglasses NOT Bifocals Acetate frame Polycarbonate - Shatter Proof lens non-polarized Lens width: 54 millimeters Lens height: 36 millimeters Bridge: 16 millimeters Arm: 139 millimeters Lenses block 100% of UVA and UVB light for maximum protection throughout the day. EYE HEALTH - Reading Sunglasses help you preserve your eye health by reducing eye strain and fatigue. COST SAVINGS - Because you'll no longer need multiple pairs of glasses, full reader sunglasses save you money. EASE OF USE - Sun Readers are convenient. It's just that simple. No longer will you need to carry multiple pairs of glasses around with you. Reinforced spring hinges for maximum flexibility and comfort.